Madman said:
Lots of surprising things about this.
Just the road surface in general seems enough to cause a fatal accident given enough time. Let alone one lane change by any driver.
Even if your eyes were watching the rearview mirror 100% of the time a bike moving that fast is not perceptible for most of us on a good day.
Yep. No one changes lanes or has an inherent ability to judge closing distances of vehicles approaching at nearly 3 times typical highway speeds. You'd likely never even see him.
Hell grease out sooner or later. It'll work itself out.